Commercial and Janitorial · Los Angeles

Your building, ready for a walkthrough every morning.

Janitorial, day porter, floor care, and post construction cleanup for offices, retail, and property managers across the LA Harbor and South Bay. Licensed, insured, and cleaning Los Angeles since 2010.

Text or WhatsApp (424) 555-0191

About Harbor Line Janitorial

Sixteen Years Of Los Angeles Buildings

Harbor Line Janitorial started in 2010 with one bucket and a short list of neighbors. Renata Castillo still runs it, and the crews still answer to her.

Most of the work now happens after hours and under contract. Nightly janitorial, day porter coverage, floor programs, restroom service, and the post construction detail that has to pass an owner walkthrough before a tenant sees the space.

You get uniformed crews, commercial grade equipment, full licensing and insurance, and an owner who answers her own phone.

Why Managers Call Us

  • Renata answers the phone herself
  • We work the hours your building is empty
  • One vendor covers interior and exterior
  • Uniformed crews and commercial grade equipment
  • Los Angeles properties since 2010

Properties We Cover

Offices and Suites Retail Floors Post Construction Property Managers Event Venues Industrial and Warehouse

What We Cover

One Vendor For The Whole Property

Inside and outside, on a schedule that fits how the building runs. Tell us the square footage and the hours, and you get a walkthrough and a written scope.

Primary Service

Commercial Cleaning

Contract and one time work for offices, retail, medical suites, venues, and industrial space.

  • Janitorial Services
  • Office Cleaning and Maintenance
  • Post Construction Cleaning
  • Day Porter Services
  • Custodial Services
  • Guardian Services
  • Floor Care and Maintenance
  • Carpet Cleaning and Maintenance
  • Disinfection and Sanitization
  • Restroom Cleaning and Restocking
  • Venue and Outdoor Event Cleanup

Nightly, three times weekly, weekly, or a one time turnover. We set scope and frequency at the walkthrough.

Also In House

Exterior Cleaning

The same crew that works inside handles your windows, walkways, and lot.

  • Window Washing
  • Pressure Washing
  • Solar Panel Cleaning
  • Roof Cleaning and Maintenance
  • Gutter Cleaning
  • Parking Lot Sweeping and Cleaning
  • Sidewalk and Entryway Cleaning
  • Trash Removal and Recycling
  • Valet Parking Solutions
On Request

Specialty and Turnover Work

Non recurring jobs we still take on, most often for the owners and managers we already serve.

  • Move In and Move Out Cleaning
  • Vacation Rental Turnover
  • Deep Cleaning
  • Biohazard Cleaning
  • Hoarding Cleanout
  • Residential Post Construction

We Work When Your Building Is Empty

Nights, early mornings, weekends, and turnover windows. Tell us when the building clears out and that is when the crew shows up.

In Their Words

What Customers Said

Sample testimonials, written to show the layout.

Yelp
“The crew works after we close and the office is spotless by the time the first person badges in.”
Sample review
Illustrative text
Groupon
“They walked the whole floor with us before quoting, so the scope matched the building.”
Sample review
Illustrative text
Nextdoor
“Insurance paperwork and the checklist were in our inbox the same week we asked.”
D. S., Lakewood CA
Nextdoor recommendation, March 2024

Areas Served

The Harbor, The South Bay, And Greater Los Angeles

Our crews come to you, across the harbor, the South Bay, Long Beach, and into greater Los Angeles. If your property sits just outside the list, ask anyway.

WilmingtonSan PedroLong Beach CarsonTorranceHarbor City LomitaGardenaCompton Redondo BeachEl SegundoDowntown LA

Office Hours

  • Monday to Friday8:00am – 4:00pm
  • SaturdayBy appointment
  • SundayClosed

Those are the hours for reaching the office. We schedule janitorial and day porter coverage around your building, including nights and weekends.

We Come To You

Fully mobile across Los Angeles County. There is no storefront to visit. Every job starts with a walkthrough at your property, and the crew brings its own equipment.

Get In Touch

Book A Walkthrough

Send the address, the square footage, and the hours the building is empty. You get a scope and a number back.

HARBOR LINE JANITORIAL, LLC
Commercial cleaning and janitorial · Mobile across Los Angeles County
Licensed and insured · Serving Los Angeles since 2010
(424) 555-0191 · info@harborlinejanitorialservices.com
© 2026 Harbor Line Janitorial, LLC. All rights reserved.
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